Hey Riot. Make a "NEVER PUT THIS PERSON ON MY TEAM AGAIN" button.
Reporting them doesn't do that. I know, because I have played matches where I get the guy that was crying and BMing all game on my team in the next game. I wish there was a button that made it 99% unlikely you would ever play with a person again.
Also, seriously, do something about "negative attitude" reports. Obviously there is no action done against these people, because I get at least 2 people per game with TERRIBLE attitudes on my team at least 60% of my games. I stay silent the entire time, so it ain't me causing it; they just randomly go off like a motherfucker on someone on the team for whatever reason (usually "OMG! GANK FOR ME! Y U DO SO BAD! FUCK YOU!"). I dunno, I think people with proven negative attitudes should get a one month ban and a big sticker on their dashboard if they try to sign in that says "Stop being such a stinker" and a chatlog of the games they got reported in so they can see all of what they said to get them that 1 month ban.
Seriously. The only way to cure this cancerous problem is to act harshly and in a manner that gets people to understand that LoL isn't their therapy grounds where they can go off on everyone to alleviate stress (or just to be mean-spirited and spread that negativity around).
just need some freeze in our life